NOTE: Amazingly, there is no numbered (or otherwise) exploded parts diagram and number to part # list. I have tried several times to no avail. It is not available to the public. So, with no names for the parts, we have to describe them and attach the correct names ourselves. Pretty terrible, I know. But what can we do - harass/ask Bob I guess ;-)
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Always call Bob Ailes first as broken/defective parts may be under warranty. If you wish to order parts in case of failure, this is the short list I have collected. FWIW.

Bolt Assy. - $510 NOTE: The bolt is NOT available separately. It can only be ordered complete.

Extractor Part# BFS2000074 - $103

Extractor Spring Part# BFS2000075 -

Firing Pin Part# BFS2000061 - $102

Gas Rings Part# BFS2000033 qty.3 - $6

Hammer group Assy. - Not available - slides out after removing rubber stock plate - Note: Rifle has to be sent to FN-USA - again, call Bob Ailes

For the handguard, this was posted on the forum B.C. (before crash) Your number has a 2 in it though, might wanna keep both on hand for reference
Originally posted by JMZ5 1/1/08
You need to call the browning service center to order.
Phone # 1-800-635-1321
Handguard part # BFS000056
MSRP $10

Rapier1772 wrote:For the handguard, this was posted on the forum B.C. (before crash) Your number has a 2 in it though, might wanna keep both on hand for reference
Originally posted by JMZ5 1/1/08
You need to call the browning service center to order.
Phone # 1-800-635-1321
Handguard part # BFS000056
MSRP $10